SAT and ACT preparation is an opportunity to fill in gaps (and also to raise your score). I can help you up your Math score/grade and learn more Math and critical thinking skills in the process. Beyond, SAT and ACT, I also help people study for other standardized tests like Regents, SHSAT and GRE. I also love doing homework and will help you or your student complete their assignments and learn Math! For verbal prep, I recommend Judith Rodgers at http://www.tutoringwithdistinction-judithrodgers.com/
Use the official books from the test makers as they are superbly accurate. If you study enough, your book will look loved like the book pictured below: